Robotics

Engineering students create a 3D-printed functional robotic arm

Fifteen bachelor's and master's degree students from the Barcelona School of Industrial Engineering (ETSEIB) of the Universitat Politècnica de Catalunya · BarcelonaTech (UPC) share the same dream: improving the quality ...

Engineering

Researchers bring first underwater messaging app to smartphones

For millions of people who participate in activities such as snorkeling and scuba diving each year, hand signals are the only option for communicating safety and directional information underwater. While recreational divers ...

Energy & Green Tech

New material pushes sodium-ion batteries to phase out costly lithium

With lithium prices over five times higher than they were a year ago, researchers from Skoltech and Lomonosov Moscow State University have developed a material for sodium-ion batteries that offer an alternative to the increasingly ...

page 1 from 9

Battery (electricity)

In electronics, a battery or voltaic cell is a combination of many electrochemical Galvanic cells of identical type to store chemical energy and to deliver higher voltage or higher current than with single cells.

The battery cells create a voltage difference between the terminals of each cell and hence to its combination in battery. When an external electrical circuit is connected to the battery, then the battery drives electrons through the circuit and electrical work is done. Since the invention of the first Voltaic pile in 1800 by Alessandro Volta, the battery has become a common power source for many household and industrial applications, and is now a multi-billion dollar industry.

This text uses material from Wikipedia, licensed under CC BY-SA